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2×2算子矩阵的正性

Positivity of 2×2 Operator Matrices
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摘要 本文主要研究2×2算子矩阵的正性,并利用极大Tseng逆理论等给出了2×2算子矩阵为正算子的等价条件.此外,给出一类正算子矩阵的平方根算子表达式. In this paper,it mainly studies the positivity of 2 × 2 operator matrix,and gives the equivalent condition that 2×2 operator matrix is a positive operator by using the maximal Tseng inverse theory.In addition,the authors give the representation of the square root operator of a class of positive operator matrices.
作者 成妍 海国君 CHENG Yan;HAI Guojun(School of Mathematical Science,Inner Mongolia University,Hohhot 010021,China)
出处 《数学年刊(A辑)》 CSCD 北大核心 2023年第1期29-38,共10页 Chinese Annals of Mathematics
基金 国家自然科学基金(No.11761052) 内蒙古自然科学基金(No.2020ZD01)的资助。
关键词 算子矩阵 极大Tseng逆 正性 平方根算子 Operator matrix Maximal Tseng inverse Positivity Square root operator
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